Update git submodules

* Update docs/submodules/joid from branch 'master'
  - Add an example and blank labconfig files

    The currently available labconfig files may be confusing and are little
    documented. There should be one example config file which is kept
    up-to-date and well commented.

    Change-Id: Ic765f647ded25ea43cc601153fde9eee9c233790
    Signed-off-by: Martin Kulhavy <martin.kulhavy@nokia.com>

diff --git a/docs/submodules/joid b/docs/submodules/joid
index fd8bd0c..5eb4751 160000 (submodule)
--- a/docs/submodules/joid
+++ b/docs/submodules/joid
@@ -1 +1 @@
-Subproject commit fd8bd0c1beb084655a06a2cc5409fde190951e8a
+Subproject commit 5eb47511c7e7ceaeef3f5c82f8e625cb36978546